Answer:
x=8, y=4
Look up the 30-60-90 triangle rule
Answer:
-6.3
Step-by-step explanation:
7/10 X -9/1 = -63/10 = -6.3
Answer:
Amount of Niobium-91 initially
= 300/91 =3.2967mol
2040 years = 3 ×680 = 3 half-lives
therefore, amount left = 0.4121mol
mass of Niobium-91 remaining = 0.4121 ×91 =37.5g
Please give brainliest
Answer:
3-2x=15
Step-by-step explanation:
add 3 to both sides makes -2x=18. divide -2 from both side gets the answer x=-9, so the answer is C, -9
Answer:
45
Step-by-step explanation:
the 90 degree angle is subtracted by 45 and the answer is.
